HELI-COIL Prewinder Type III Installation Tool for Helical Inserts
The HELI-COIL Threaded Mandrel Tool is a Prewinder Type III installation tool for helical inserts, designed for right-hand coarse threads in inch measurements. This steel tool (MPN 3724-20) is compatible with helical…
SKU 3G-OTH-531030
Also listed as: 372420 · 3724 20
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The HELI-COIL Threaded Mandrel Tool is a Prewinder Type III installation tool for helical inserts, designed for right-hand coarse threads in inch measurements. This steel tool (MPN 3724-20) is compatible with helical inserts, enabling efficient prewinding during thread repair or reinforcement.
Frequently Asked Questions
What is the HELI-COIL Threaded Mandrel Tool Prewinder Type III used for?
The HELI-COIL Prewinder Type III tool (MPN 3724-20) is used to prewind helical inserts into tapped holes before final installation. It ensures proper thread alignment during thread repair or reinforcement in steel components, commonly applied in automotive, aerospace, and industrial maintenance.
What are the specifications of the HELI-COIL 3724-20 Prewinder Type III?
The HELI-COIL 3724-20 is a steel threaded mandrel tool, Prewinder Type III, for right-hand coarse inch threads. It is compatible with helical inserts and designed for inch-system measurements. The tool is manufactured by HELI-COIL and supports efficient prewinding during thread repair.
Where to buy the HELI-COIL Prewinder Type III tool worldwide?
3G Electric supplies the HELI-COIL Prewinder Type III tool (MPN 3724-20) worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this installation tool for helical inserts to any international destination.
How to install helical inserts using the HELI-COIL Prewinder Type III?
To install helical inserts with the HELI-COIL Prewinder Type III, first tap the hole to the correct inch coarse thread size. Attach the insert to the prewinder mandrel, then rotate the tool clockwise to wind the insert into the tapped hole. Finally, break off the tang using a tang break-off tool.
Used in
Common applications for HELI-COILHELI-COIL Products
3G Electric supplies HELI-COIL installation tools for helical inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
